a Singapore deaths include two the health ministry has classified as probably due to SARS.

b Canadian figure includes suspected or probable cases.

c Some 50 people also have been isolated in Vietnam's Ninh Binh province.

d Number of probable cases in the United States. The number fell because it redefined the way it classified SARS patients.

e Malaysia's infection number includes both probable and confirmed cases. Its two deaths are probable cases.

f Cases in Sweden are all classified as probable.

g WHO lists only one probable case for Indonesia, but local health ministry officials list a further three suspected cases, all of whom have been discharged from hospital.

h Philippines death has been classified as probable.

i Japan's cases are classified as possible infections. Due to differences in the case definitions, probable cases are reported by all countries except the United States, which is reporting suspected cases under investigation.

j The case in South Africa is "probable", meaning the patient has not yet tested positive for the virus.